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IDT - Audio - IDT High Definition Audio C… - Apple Community
https://discussions.apple.com/thread/1505591
I have a MacBook Pro with SigmaTel sound card, and i was stupid enough to install this update. After installation, sound is gone and windows started to say "no audio output device". I had to uninstall the updated driver and install SigmaTel driver again (did not want to install whole bootcamp stuff again, so i googled for the driver).
No sound on Windows 7 installed on an iMac (SIGMATEL STAC ...
https://answers.microsoft.com/en-us/windows/forum/all/no-sound-on-windows-7-installed-on-an-imac/af6e2f0f-fc46-487b-af0f-6299f115cbfe
I have an imac with windows 7 installed. It is a clean install without bootcamp. There is no Audio on the machine. From the vendor ID I found that the device is SIGMATEL STAC 92XX C-Major HD Audio. I tried installing 3 different drivers made for Dell with same audio card. None of them works saying the device is not working or found or disconnected.
Troubleshoot sound problems on Windows with Boot Camp
https://support.microsoft.com/en-au/topic/troubleshoot-sound-problems-on-windows-with-boot-camp-8f9e3cde-cbdc-4477-b60c-40d9a4cd19ef
Option 1: Install the drivers from you’re Mac OS disk. Start your Mac and boot into Windows. Insert your Mac OS installation disk. a. If the installer window doesn’t appear automatically, click the Start button, click Computer. b. Click the drive that contains the Mac OS disk. c. Double-click the Boot Camp folder. d.
iMac 24' Boot Camp Windows XP Sigmatel HD Driver does not ...
https://forums.macrumors.com/threads/imac-24-boot-camp-windows-xp-sigmatel-hd-driver-does-not-install.586057/
Open the "Device Manager" in Vista. 2. Navigate to and select the sound card (it may not be called Sigmatel). 3. Right-click and "update driver". 4. Select the option that lets you browse your computer for driver software. 5. Navigate to the destination where your driver is located on your hard-drive.
SigmaTel High Definition Audio CODEC - Free download …
https://download.cnet.com/SigmaTel-High-Definition-Audio-CODEC/3000-2110_4-173629.html
Developer's Description. By Dell. This package supports the following driver models: SigmaTel High Definition Audio CODEC.
Windows10 x86 Audio Driver for MacBook Pro (15-inch Glossy ...
https://www.tenforums.com/sound-audio/33188-windows10-x86-audio-driver-macbook-pro-15-inch-glossy-issue.html
The only 2 drivers I had to track down were the display adapter for ATI X1600 (which you already have, I got it from Microsoft update catelog) and Sigmatel for the audio. All the rest came from Bootcamp 6 (except AppleHFS.sys which causes BSOD and I've disabled). SigmaTel installed IDT High Definition version 6.10.5927.2 dated 5/6/2008.
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